Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.

Trending News

Promoted
Jessica
Jessica asked in Science & MathematicsMathematics · 6 years ago

solving using substitution method y=-x+15 4x+3y=38?

3 Answers

Relevance
  • Como
    Lv 7
    6 years ago

    4x + 3 [ 15 - x ] = 38

    x + 45 = 38

    x = - 7

  • DWRead
    Lv 7
    6 years ago

    4x + 3y = 38

    substitute -x+15 for the y

    4x + 3(-x+15) = 38

    4x - 3x + 45 = 38

    x = -7

  • Miss
    6 years ago

    To find the y solution, all you have to do is to substitute x = -7 in any of the equations you choose for e.g

    Subsituting x = -7 in the first equation will be

    y = -(-7) + 15 Note that minus times minus equals plus

    y = +7+15

    y = 22

Still have questions? Get your answers by asking now.